html,
body {
	padding: 0;
	margin: 0;
	box-sizing: border-box;
}

body {
	font-family: 'Roboto', sans-serif;
	font-size: 14px;
}

select {
  padding: 5px;
}

.container {
	margin: 0 auto;
	max-width: 1200px;
	padding-left: 15px;
	padding-right: 15px;
}

.main-header {
	border-bottom: 1px solid #ccc;
	margin-bottom: 10px;
}

.main {
	margin-bottom: 10px;
}

.main-footer {
	border-top: 1px solid #ccc;
}

.main-header-nav {
	display: flex;
	align-items: center;
}

.site-navigation {
	display: flex;
	flex-wrap: wrap;
	align-items: flex-start;
	justify-content: center;
	padding: 0;
	margin: 0;
	list-style: none;
	width: 100%;
}

.site-navigation-item {
	margin-right: 20px;
}

.site-navigation-item:last-child {
	margin-left: 0;
}

.site-navigation-link {
	font-size: 14px;
	font-weight: bold;
	color: #333;
	text-transform: uppercase;
	text-decoration: none;
}

.site-navigation-link:hover {
	color: blueviolet;
}

.btn {
  border: 1px solid #eee;
	border-radius: 2px;
	background-color: #eeeeee;
	color: #333;
	cursor: pointer;
	margin: 2px;
  padding: 5px 10px;
}

.btn:hover {
	background-color: 1px solid #ccc;
}

.btn-minimize {
	background: url('../img/icon-minimize.png') no-repeat 50% 50%;
}

.btn-add {
  width: 35px;
  height: 35px;
	background: url('../img/icon-add.png') no-repeat 50% 50%;
}

.btn-edit {
  width: 35px;
  height: 35px;
	background: url('../img/icon-edit.png') no-repeat 50% 50%;
}

.btn-remove {
  width: 35px;
  height: 35px;
	background: url('../img/icon-remove.png') no-repeat 50% 50%;
}

.visually-hidden {
	visibility: hidden;
}

.btn-success {
  border-color: #198754;
  background-color: #198754;
  color: white;
}
.btn-success:hover {
  background-color: #198050;
}

.btn-error {
  border-color: #ac1310;
  background-color: #ac1310;
  color: white;
}
.btn-error:hover {
  background-color: #ac0806;
}

.form-input {
  margin: 2px;
  padding: 5px 10px;
  border: 1px solid #555;
  border-radius: 2px;
}

.btn-middle {
  width: 90px;
}